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High Resolution Slotted Optical Switch OPB821TX
Obsolete (OPB821TXV)
Features:
• Non-contact switching • Low profile to facilitate stacking • Hermetically sealed components • 24” (609.60 mm) minimum length wire conforms to MIL-W-16878 • TX components processed to MIL-PRF-19500
Description:
Each OPB821TX device consists of a gallium aluminum arsenide LED and a silicon phototransistor, which are soldered into a printed circuit board and mounted in a high temperature plastic housing on opposite sides of an 0.080” (2.03 mm) wide slot. Lead wires are #24 AWG polytetraflouroethylene (PTFE) insulated, which conforms to MIL-W-16878.
Phototransistor switching takes place when an opaque object passes through the slot. For maximum output signal, neither the LED nor the phototransistor is apertured.